Description:IP67 waterproof and dustproof grade.With curved glass (with anti-fogging function).With -wide working voltage design.PC material dial.The meter comes with an alarm signal and does not require an additional alarm signal from the sensor.Using a high-precision stepper motor, the pointer acceleration and deceleration curve motion can extend the life of the motor.High-brightness LEDs are used for backlighting, which has high brightness and long life.Specification:Dial: BlackMaterial: PC polycarbonateSize: 8x8x7cm / 3.1x3.1x2.75 inchWorking Temperature: -40~85Protection Level: IP67Working Voltage: DC 8~16V, DC 18~32VOutput Signal: 10~185 ohmsWorking Current:<100mADisplay Accuracy:<3Indicating Range: 0~5 Bar90 display angle52mm (2") mounting holePackage Includes:1 Piece Gauge (back screw , gasket)1 Piece Cable1 Piece Rubber Stopper1 Piece Instruction Manual :Color maybe slightly different due to different monitor.The above size is measured by hand, please allow slightly difference. Thanks !